package cn.wolfcode.wolf2w.resolver;

import cn.wolfcode.wolf2w.annotation.UserParam;
import cn.wolfcode.wolf2w.domain.UserInfo;
import cn.wolfcode.wolf2w.redis.service.IUserInfoRedisService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.MethodParameter;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

import javax.servlet.http.HttpServletRequest;

public class UserInfoArgumentResolver implements HandlerMethodArgumentResolver{

    @Autowired
    private IUserInfoRedisService userInfoRedisService;

    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.getParameterType() == UserInfo.class && parameter.hasParameterAnnotation(UserParam.class);
    }

    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {

        HttpServletRequest nativeRequest = webRequest.getNativeRequest(HttpServletRequest.class);

        String token = nativeRequest.getHeader("token");

        return userInfoRedisService.getToken(token);
    }
}
